The Antarctic <<ant AHRK tihk>> Circle is an imaginary line that runs across the globe close to the South Pole. It lies at sixty six levels 33 minutes southlatitude. Latitude is a measure of distance north or south of the equator. The equator is at zero levels latitude, and the South Pole is at ninety levels south latitude. Virtually all the continent of Antarctica is contained in the Antarctic Circle.

In each place on the Antarctic Circle, the solar by no means units on the longest day of summer time, round December 21. In the identical locations, the solar by no means rises on the shortest day of winter, round June 21. In locations farther south, there are extra days in summer time when the solar by no means units. There are additionally extra days in winter when the solar by no means rises. On the South Pole, the solar stays within the sky for ninety days earlier than and ninety days after December 21. The solar can’t be seen for ninety days earlier than and ninety days after June 21.